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net: phy: mscc: macsec: clear encryption keys when freeing a flow

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[ Upstream commit 1b16b3fdf6 ]

Commit aaab73f8fb ("macsec: clear encryption keys from the stack after
setting up offload") made sure to clean encryption keys from the stack
after setting up offloading, but the MSCC PHY driver made a copy, kept
it in the flow data and did not clear it when freeing a flow. Fix this.

Fixes: 28c5107aa9 ("net: phy: mscc: macsec support")
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Antoine Tenart
2022-11-08 16:34:58 +01:00
committed by Greg Kroah-Hartman
parent 4ad684ba02
commit 1a4e495edf
1 changed files with 1 additions and 0 deletions
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1
drivers/net/phy/mscc/mscc_macsec.c
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@@ -632,6 +632,7 @@ static void vsc8584_macsec_free_flow(struct vsc8531_private *priv,
list_del(&flow->list);
clear_bit(flow->index, bitmap);
memzero_explicit(flow->key, sizeof(flow->key));
kfree(flow);
}